Flash-boiler.



No. 755,202. I PATENTED MAR. 22, 1904.

. G. .E. WHITNEY. FLASH BOILER.

APPLICATION FILED DEG. 20,1902.

I0 IQDEL. 2 SHEETS-SHEET 1.

I my;

witnesses, a I Ezzzgtm; I /6 F Y 607:96 may,

E umz xs PE TERs co. Puovuumu. wsums'run, n. c.

No. 755,202; PATENTED MAR. 22, 1904. i

G. E. WHITNEY.

PLASHBOILER.

APPLICATION FILED 13:0.- 20. 1902.

no MODEL. 2 SHEETS-SHEET 2.

liine s-s es, Inventor 6 M 5W 6960?;96 17. whit UNITED STATES Patented March 22, 1904.

PATENT OFFICE.

GEORGE E. WHITNEY, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO WHITNEY MOTOR WAGON COMPANY, OF KITTERY, MAINE, A COR- PORATION OF MAINE.

FLASH-BOILER.

' SPECIFICATION forming partof Letters Patent No. 755,202, dated March 22, 1904..

' Application filed December 20,1902. Serial-N0. 136,010. (no 1110.161.)

To all whom it Wtaty concern:

Be it known that I, GEORGE E. WHITNEY, a' citizen of the United States,residing at-Bridgeport, in the county of Fairfield and'State of Connecticut,have invented an Improvement in Flash-Boilers, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to what are known as flash-boilers, and refers particularly to that class of flash-boilers in which the water in the several coils is so trapped that water entering the topmost coil cannot gravitate to the bottom coil through the intermediate series.

The inventionhas for. its object, further,

' a simple and economical construction, which may be especially adapted for use in connection with motor-vehicles.

My invention will best be understood from a description of a boiler illustrating one embodiment thereof.

In the accompanying drawings, Figure 1 is a plan View of the generating-coils of a boiler, illustrating one embodiment of my invention;

Fig. 2, a side elevationthereof, and Fig. 3 a

side elevation of a motor-vehicle equipped with said boiler.

In the particular embodiment of my invention selected for illustration herein and shown in the drawings a series of superimposed and preferably circular coils B is provided, the

top coil of which is connected by a pipe A 'with a source of water-supply. This inletpipe A passes to the center of the coil. The

outermost portions of each coil are connected by pipes C with the centers of the coils next below. As indicated in Figs. 1 and 2, a suitable bafiEle-plate E is provided at one side of the superimposed coils to protect the couplings .C in the pipes C. The outer portion.

of the lowest coil is connected by a suitable coupling with a dry-pipe D, which conducts the generated steam to the motor.

As shown in Fig. 2, each of the series of coils is bent downwardly at each side of a diametral line, so that the portions of said coils at opposite sides said line stand in inclined 7 planes. These coil portions formed by undulating or bending the axis of the coil may be called lineal portions, meaning portions of a given length and of the full cross-sectional diameter of the. pipe or conduit. By this arrangement it will readily be seen that the water at one side said diametralline cannot gravitate to the opposite side thereof. Hence the water admitted to or formed by condensation in said coils will remain therein on either side of said line except it be forced toward the bottom coils by the delivery of steamtherefrom.

In the operation of my invention heat is applied below the coils, as by a burner F, and as the water flows to the lower and hotter coils it is gradually heated until at some interme diate point it is converted into steam and in the further flow downward becomes further heated by the most heated coils next the fire, and is finally conducted by'the pipe D to the motor, typified at Y.

By my invention,one embodiment of which is herein shown, the superposed coils may be and are here shown as directly connected one with the other and without the interposition of traps, since the traps are formed in and by the coils themselves, and as there are as many traps as there half-convolutions in the bent or deflected coilsit is clear that the number of trapped boiler-sections is largely increased and the benefits due to trapping. correspondingly increased.

When used in a motor-vehicle, the diame-' tral lines along which the coils are bent or deflected are preferably arranged longitudinally of the vehicle, but not necessarily so.

In Fig. 2 the boileris shown arranged in a suitable inclosing case or shell Gr, below which is a suitable or usual hydrocarbonburner F for heating the coils of the boiler,

up and down draft outlets are shown at the side of the boiler; but in practice they will preferably be at the rear of the boiler, as shown in Fig. l, the operation being precisely the same.

Variations may be made in the details of my invention without departing from the spirit thereof.

I claim 1. A steam-generator containing a series of connected superposed generating-coils, each of uniform bore throughout, at least one of said coils having a portion higher than another portion which is nearer the inlet end thereof.

2. A steam-generator containing a series of superposed generating coils, at least one of which has a portion higher than another portion which is nearer to the inlet end thereof, connections between said coils and a bafiieplate protecting said connections.

3. A steam-generator containing a series of superposed generating-coils connected in series and approaching a source of heat whereby the water is heated progressively, one or more of said coils having a portion higher than another portion which is nearer to the inlet end thereof, connections between said coils, and protecting means for said connections.

4. A steam-generator containing a series of connected coils, each depressed on opposite sides of a diametral line to resist gravitation of water therethrough.

5. In a steam-generator, a helical generating-coil the axis of which occupies diflerent levels at different points.

6. A steam-generator containing a generating-conduit of helical formation, the axis whereof occupies different levels at different points.

7 A steam-generator containing a generating-coil, parts of the axis of a plurality of convolutions of which lie in a diflerentplane from that of other parts of said axis.

8. In a steam-generator a series of superposed generating-coils, lineal portions of each coil being trapped one from another.

9. In a steam-generator a series of superposed generating-coils, one or more having undulatory axis or axes.

10. In a steam-generator a series of superposed generating-coils, at least one of which presents a lineal portion at a higher level than another lineal portion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE E. WHITNEY. Witnesses:

VIo'roR LINDEROTH, THOMAS B. TAYLOR. 

